Improved lifting-jack and spike-extbaotoe



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Letters Patent No. 75,134, dated March 3, 1868.

IMPROVED LIFTING-t-TAGK AND SPIKE-EXTRACTOB..

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TO ALL (HQM yIT MAY QONCERN:

Beit known that I, JOSEPH DOUGLASS, of McConnellst-own, inthe county ofHuntingdon', and Stato of' Pennsylvania, have invented a new andimproved Railroad-Spike Extractor and Jack.; and I do hereby declare thefollowing to.be a'. full, clear,'and exact description of the same,sufficient to enable those skilled in the art to which my inventionappertuins to make use of it. reference being had to the accompanyingdrawings forming part of.. this specication, in which- Figure l'i's aperspective view.

Figure 2, a front elevation.

Figure 3, a vertical longitudinal section through 4the centre; and

E igure 4,`a detached view of the grapplingclaw.

This invention is a simple, compact, and powerful device for extractingspikes from timber, combined with an apparatus which renders theinstrument useful for raising ties, rails, and other heavy articles,from the ground. l

In the drawings, A is a removable buse in the form of a stout bench,having twovertcal wooden lugs A A', two vertical metallic cleats a a,`by which the upper portion of the body ci' the instrument is held inposition when resting on the base, and between the .wooden lugs'a deepgain, a', in which the grapnel works up and down. This base is not shownin figs. 2, 3, and 4, the instrument being there represented as whenused without the base. Upon this base rests a stout wpodcn post, B,chambered at C to admit the mechanism hereafter? described, and providedwith a vertical groove in its front side, in which playstlio ratchet-rodthat carries the grapnel, andl with a'longitudinal passage or slotthrough itat the bottom, as shown at c, fig. 2,-through which access maybe had from the rear side of the instrument tothe space enclosed betweenthe upright wooden lugs A A. This post is bound with brass or iron at DD to prevent;` its splitting, and is provided with a supplenientarybrace or leg, E, on the front side, which is 'useless when the apparatusrests on -the base, A, but when it does not rest on the base, as infigs. 2 and 3, supports its front side. F is a.A vertically-slidingrod', workingr in the front groove of the post B, and provided on itsrear side with a series of ratchet-teeth, e c e e, of the peculiar fornishown in figs. and 3, by which it is raised by abend-lever, G, workingona rocki-ng-i'ulerum, H. The lever is pressed against the ratchet by aspring, s, operating against the fulcrnm. A pawl, I, operated by aspring, z', also engages with the ratchet, and prevents its falling backwhen raised; `The lower end of thc ratchet-rod F' is fashioned into asocket, which receives and holds the upper end of the grapnel or claw,which takes hold of the spike or timber to be raised. There are severalforms of the grapnehone for raisingtimber being shown at J'in the shapeof a hook with broad-serrated edge; another for drawing spikes beingshown in iig. 4, provided with a ret-ess m, to receive the head of thespike; and still another, n, -for thc same purpose, being shown in fig.2, providedwith an aperture entirely through it to hold the head of thespike. Either may be used, as occasion requires. They are all hinged tothe lower end ot' the ratchet-rod, so as to swing freely back and forth.

It will be observed that the claw o, at the end of the lever G, whichengages with thc teeth ofthe ratchet, is of peculiar shape, being convexon its under side and concave on its upper. The teeth e e are concaveboth on their upper and under sides, and are of such dimensions that theconcavity of their upper side is illed by the eonvexity of thc underside of the lever-claw, which lits int-o them accurately, as shown inig. 3. By this means the lever is more easily operated, the claw workingsmoothly againstthe teeth and pressing:r the rockingfulcruin back easilyto allow the lever to take hold anew in a lower tooth of" the ratchet.-I

For the purpose of lifting the ends of ties to level the road, theapparatus is used with the base, A, and hook J, as shown in iig. l. Fordrawing spikes, the base is rcmoved, and the form of grapnel shown infigs. 2 or 4 is used. The apparatus then is worked as illustrated byfigs. 2 and 3.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The removable base A, in combination with the post B, when used inalifting-jack or device for extracting spikes, substantially as and forthe purposes specified. i

2. The hook J, with broad serrated edge, as and for thc purpose setforth.

3. The combination of the rod F, lever G, rocking-fulcrum H, spring s,pawl I, and spring z', substantially as and for the purpose set forth.

Witnesses J. E. SML'CKEE, PETER Swoorn JOSEPH DoUeLAss.n

